Csah 108 over ST Louis River
GoodSt. Louis County, Minnesota · 1.8 MI SW of JCT Csah 4 · Structure no. 69555
- Built
- 1988
- 37 years old
- Condition
- Good
- inspected May 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 147 ft
- 3 main spans
- Daily traffic
- 230
- 2019 count
- Owner
- County
- County Highway Agency
About this bridge
Csah 108 over ST Louis River is a prestressed concrete tee beam carrying Csah 108 over ST Louis River in St. Louis County, Minnesota. It was built in 1988, so it is 37 years old, younger than the Minnesota average of 38.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 230 vehicles a day, projected to reach 205 by 2039. The structure is 147 ft (44.7 m) long and 37 ft wide. If it were closed, the detour would be 3.7 mi (6 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 8 Very Good | No problems noted. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Csah 108 over ST Louis River built?
It was built in 1988, making it 37 years old in 2025.
What condition is Csah 108 over ST Louis River in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2024.
How much traffic does Csah 108 over ST Louis River carry?
About 230 vehicles per day (2019 count).
How long is Csah 108 over ST Louis River?
The structure is 147 ft (44.7 m) long with a longest span of 49 ft (14.9 m) and a deck 37 ft wide.
Who owns Csah 108 over ST Louis River?
It is owned by the County Highway Agency.